Alpinestars ST-1 Waterproof Jacket

The Alpinestars ST-1 Waterproof Jacket is a clean, minimalist adventure touring jacket built for year-round road riding. A fixed waterproof liner keeps you dry on wet days, chest vents bring in cooling air, and a detachable thermal liner adds warmth for cold mornings and evenings. It's Tech-Air® Ready and comes with CE Level 1 Nucleon Flex Plus shoulder and elbow armor.

Note: Follow the sizing chart under the fitment tab for the proper fit. These jackets run small compared to traditional US sizing. If you want a looser fit we suggest sizing up one.

Optional Armor Upgrades (sold separately): This jacket has chest and back armor pockets. Click to add:

• Alpinestars Nucleon Plasma Back Protector Insert (CE Level 2 back)
• Alpinestars Nucleon KR-Celli Back Protection Insert (lightweight CE Level 1 back)
• Alpinestars Nucleon Plasma Divided Chest Protectors (CE Level 1 chest)

Construction:

• Modern shoulder design with Alpinestars branding for an adventure-touring look
• Detachable thermal liner (80g torso, 80g sleeves) with snap connections; stores in the lower back cargo pocket
• Extended cut on the back for more coverage in the riding position
• Pant connection zipper to keep wind out

Waterproofing:

• Fixed waterproof membrane liner for wet-weather performance

Ventilation:

• Front chest vents for cooling airflow and breathability

Protection & Safety:

• CE Level 1 Nucleon Flex Plus shoulder and elbow armor included
• CE certified riding garment to EN 17092-4:2020, Class A
• Chest and back protector pockets for optional Nucleon chest and back protectors (sold separately; see Optional Armor Upgrades above)
• Tech-Air® Ready

Comfort & Fit:

• Comfort fit with pre-curved arms and ergonomic elbows
• Bicep volume adjusters, plus hook-and-loop collar, cuff and waist adjusters

Pockets:

• Two slim front cargo pockets with built-in expansion
• Lower back cargo pocket and zippered chest pocket
• Two inner mesh pockets (one waterproof)

Great for: road touring, commuting and year-round riding in wet or cool weather.

Part Numbers:
Manufacturer: Black: S-3200625-10-S, M-3200625-10-M, L-3200625-10-L, XL-3200625-10-XL, 2XL-3200625-10-2XL, 3XL-3200625-10-3XL, 4XL-3200625-10-4XL; Ice Gray/Black/Yellow Fluo: S-3200625-9145-S, M-3200625-9145-M, L-3200625-9145-L, XL-3200625-9145-XL, 2XL-3200625-9145-2XL, 3XL-3200625-9145-3XL, 4XL-3200625-9145-4XL; Dark Blue/Black/Bright Red: S-3200625-7093-S, M-3200625-7093-M, L-3200625-7093-L, XL-3200625-7093-XL, 2XL-3200625-7093-2XL, 3XL-3200625-7093-3XL, 4XL-3200625-7093-4XL; Dark Khaki/Sand/Black/Red Fluo: S-3200625-866-S, M-3200625-866-M, L-3200625-866-L, XL-3200625-866-XL, 2XL-3200625-866-2XL, 3XL-3200625-866-3XL, 4XL-3200625-866-4XL
P/N: Black: S-2820-6788, M-2820-6789, L-2820-6790, XL-2820-6791, 2XL-2820-6792, 3XL-2820-6793, 4XL-2820-6794; Ice Gray/Black/Yellow Fluo: S-2820-6795, M-2820-6796, L-2820-6797, XL-2820-6798, 2XL-2820-6799, 3XL-2820-6800, 4XL-2820-6801; Dark Blue/Black/Bright Red: S-2820-6802, M-2820-6803, L-2820-6804, XL-2820-6805, 2XL-2820-6806, 3XL-2820-6807, 4XL-2820-6808; Dark Khaki/Sand/Black/Red Fluo: S-2820-6809, M-2820-6810, L-2820-6811, XL-2820-6812, 2XL-2820-6813, 3XL-2820-6814, 4XL-2820-6815